CeramicSpeed BB ALPHA for BB86 Shimano Road

 

Product Introduction

Built to outlast your frame. The CeramicSpeed BB ALPHA features grade-3 Silicon Nitride ceramic balls and hardened stainless-steel races, hand-built in Denmark. With custom-engineered seals delivering 500% better moisture protection, ultra-low friction, a 10% weight reduction over previous generations, and a lifetime warranty — this is the last bottom bracket you'll ever need.

 

The CeramicSpeed BB ALPHA is the brand's flagship press-fit bottom bracket, purpose-built for Shimano 24mm spindle cranks (including Dura-Ace, Ultegra, 105, and GRX) in BB86-standard frames.

Where most bottom brackets compromise between lifespan and price, the BB ALPHA is engineered around one principle: outlast the frame it's installed in. At its core are grade-3 Silicon Nitride (Si₃N₄) ceramic balls — CeramicSpeed's highest-grade in-house produced bearing balls — paired with hardened stainless-steel races to ensure ultra-low friction and exceptional longevity even under high-RPM demands.

The sealing system went through 28 design iterations, with laboratory testing confirming a 500% improvement in moisture and contamination resistance over conventional designs. Whether you ride in rain, humidity, or dusty conditions, the BB ALPHA keeps performing. A newly simplified spacer tube design makes installation faster and more straightforward, while simultaneously achieving a 10% weight saving over the previous generation.

Every BB ALPHA unit is hand-assembled by technicians in Denmark and backed by CeramicSpeed's lifetime warranty.

 

Key Features

Ultra-Low Friction: Grade-3 Silicon Nitride ceramic balls paired with hardened stainless-steel races deliver minimal rolling resistance, converting every watt of power into forward motion.

500% Moisture Protection: Custom-designed seals and precision dust covers, refined through 28 iterations, dramatically improve waterproofing and contamination resistance to extend bearing life.

Lightweight Design: Optimised cup material and a super-light spacer tube achieve a 10% weight reduction over the previous generation, with a net weight of just 78g.

Corrosion Resistant by Design: Hardened stainless-steel races inherently resist corrosion without relying on additional coatings.

Simplified Installation: Fewer spacer variants mean a more straightforward installation process with less room for error.

Lifetime Warranty: Backed by CeramicSpeed's official lifetime warranty programme for maximum peace of mind.

Hand-Built in Denmark: Each bearing unit is individually assembled and quality-inspected by Danish technicians.

 

In the Box

• CeramicSpeed BB ALPHA for BB86 Shimano Road × 1
• UFO TECH All Round Bearing Grease 5ml × 1
• CeramicSpeed Decal × 1

 

Frame & Crank Compatibility

Compatible with all road bike frames featuring the BB86 press-fit bottom bracket standard (41mm bore, 86mm width), paired with Shimano 24mm spindle cranks including but not limited to Dura-Ace, Ultegra, 105, and GRX series. Also compatible with other crank brands utilising a 24mm spindle diameter.

 

Recommended Accessories

• CeramicSpeed Bottom Bracket Tool Kit
• CeramicSpeed Alloy Preload Bolt for Shimano Cranks
• CeramicSpeed Bottom Bracket Seal & Dust Cover Service Tool